Symbol file not loading for debugging custom project in Visual Studio 2012

Question

I have a large solution in Visual Studio 2012 which consists of executables and class library projects. When debugging the application the breakpoints in one particular clas

Answer 1

1. Check options from this answer: https://stackoverflow.com/a/38377530/6911991
2. Click Advanced and check that Debugging Information is set to FULL
   
3. Check Run Configuration in all projects in the solution